More at 100 kilometers

I find it intriguing that this image is halfway between the largest
and smallest power of 10 that I have presented in this site. There are
as many jumps to reach the limits of the known universe as there are
to reach the smallest known particle. We know of no form of life large
enough to be visible to the naked eye at this scale, yet we can easily
see the signs of life here. We can recognize the fields and forests
of living plants and see definite signs of intelligence in the linear
and geometric shapes of our cities.